Barricade system and barricade bracket for use therein

ABSTRACT

A protective barricade system to prevent persons from accidentally falling through holes in roofs or floors or from the edges of stairwells, balconies, or pitched roofs. The barricade system comprises a plurality of barricade brackets that are spaced apart and can be releasably attached to the underlying surface.

FIELD OF THE INVENTION

The invention relates to the protection of workers at constructionsites. More particularly, the invention relates to a barricade systemthat can be positioned about a stairwell opening or some other hole in aroof or floor, on the surface of a pitched roof that is undergoingconstruction or maintenance, and/or along an unprotected edge, such as abalcony. The barricade system is installed to prevent a worker fromaccidentally falling through such a hole, off the edge of a flat orpitched roof, or from the edge of an elevated work area.

BACKGROUND

Workers involved in the construction or maintenance repair of buildingsrisk serious injury or fatality if they should lose their balance andfall off the edge of a roof or a walking-working surface, or into a holein the floor or roof. Injuries and fatalities caused by falls fromunguarded roof edges, through roof and floor holes, or throughunprotected skylight fixtures are some of the most severe and costlycategories of injury in all U.S. private industry. One estimateindicates that slips and falls injuries are at least a $5.7 billion/yearconstruction industry problem. In response, various safety systems havebeen proposed over the years and the Occupational Safety and HealthAdministration (OSHA) has promulgated regulations specifically requiringemployers to provide fall protection to workers.

Current OSHA regulations for the construction industry are contained in29 CFR (Code of Federal Regulations) Part 1926. Specifically, Subpart M,which includes Sections 1926.500 through 1926.503 and Appendices Athrough E, lists the requirements that are related to workplace falls.Section 1926.501 discusses the requirements for fall protection.Subsection 1926.501(b)(1) states that “Each employee on awalking/working surface (horizontal and vertical surface) with anunprotected side or edge which is 6 feet (1.8 m) or more above a lowerlevel shall be protected from falling by the use of guardrail systems,safety net systems, or personal fall arrest systems.” Subsection1926.501(b)(4)(i) states that “Each employee on walking/working surfacesshall be protected from falling through holes (including skylights) morethan 6 feet (1.8 m) above lower levels, by personal fall arrest systems,covers, or guardrail systems erected around such holes.” In addition,subsection 1926.502(b) states that:

-   -   Guardrail systems and their use shall comply with the following        provisions:    -   (1) Top edge height of top rails, or equivalent guardrail system        members, shall be 42 inches (1.1 m) plus or minus 3 inches        (8 cm) above the walking/working level . . . .    -   (2)(i) Midrails, when used, shall be installed at a height        midway between the top edge of the guardrail system and the        walking/working level. . . .    -   (3) Guardrail systems shall be capable of withstanding, without        failure, a force of at least 200 pounds (890 N) applied within 2        inches (5.1 cm) of the top edge, in any outward or downward        direction, at any point along the top edge. . . .    -   (4) When the 200 pound (890 N) test load . . . is applied in a        downward direction, the top edge of the guardrail shall not        deflect to a height less than 39 inches (1.0 m) above the        walking/working level. Guardrail system components selected and        constructed in accordance with Appendix B [of] Subpart M . . .        will be deemed to meet this requirement.    -   (5) Midrails . . . shall be capable of withstanding, without        failure, a force of at least 150 pounds (666 N) applied in any        downward or outward direction at any point along the midrail . .        . .    -   (6) Guardrail systems shall be so surfaced as to prevent injury        to an employee from punctures or lacerations, and to prevent        snagging of clothing.    -   (7) The ends of all top rails and midrails shall not overhang        the terminal posts, except where such overhang does not        constitute a projection hazard. . . .    -   (11) When guardrail systems are used at holes, they shall be        erected on all unprotected sides or edges of the hole.    -   (12) When guardrail systems are used around holes used for the        passage of materials, the hole shall not have more than two        sides provided with removable guardrail sections to allow the        passage of materials. When the hole is not in use, . . . a        guardrail system shall be provided along all unprotected sides        or edges. . . .    -   (14) Guardrail systems used on ramps and runways shall be        erected along each unprotected side or edge.

Attempts have been made in the past to solve this problem, but such pastdevices have either not been adjustable to a wide variety of roofpitches, use a pitch adjustment mechanism that presents a potentialpoint of failure, are difficult to set up and remove, or are overlycomplex. Thus, there remains a need for a portable barricade system thatmeets OSHA requirements, is easy to set up and remove, is adjustable tothe respective pitch of the underlying surface, is solidly constructed,and is collapsible so as to be easily transportable between job sites.

SUMMARY

The present invention provides a novel and versatile barrier system thatachieves the above-mentioned goals and can be installed and removedwithout the need to modify the underlying structure, such as, forexample, a roof structure. The barricade system can be readily used inresidential construction and the construction of sloped-roof structuresin general, with additional application in flat (low-slope) structuresand non-roof applications (leading edge work) in residential orindustrial construction.

In one aspect, the invention may be defined as a barrier systemcomprising at least one barricade bracket that permits the easyinstallation of protective guardrails, toe boards, and work surfaces onroofs and other surfaces over a wide pitch range. Each barricade bracketcomprises a base member, a support member and a step member that can befixed relative to each other such that the step member can beselectively and releasably positioned at a plurality of predeterminedangles with respect to the base member.

In use, the protective barricade system is easily installed at roofedges and around holes or skylights on flat (low-slope)commercial/industrial roofs, and on sloped residential roofs withpitches ranging between 18° (4:12) to 63° (24:12). The barricadesystem's set pitches are 27° (6:12), 34° (8:12), and 40° (10:12) to 45°(12:12), 51° (15:12), 56° (18:12), and 63° (24:12). Roof slopes betweenthese set pitches can also be accommodated, with the step member of thebarricade bracket having a few-degree pitch toward the roof surface whenused on non-standard pitches. The barricade system of the presentinvention allows for the installation of the three-member guard railrequired by OSHA standards (top rail, midrail and toe-board), as well asthe installation of support planks ranging from 2″×6″ to 2″×12″. The 12″wide plank provides for a large walking/working area, comparable to thewidest such surfaces available in the industry today.

In one embodiment, the barricade bracket can be mounted directly on thesurface of the roof to the underlying roof truss member and thereforeenables a greater freedom of placement than do current devices thatrequire rail placement either at the roof edge or at the seams betweenoverlay sheets at four-foot intervals. The barricade system of thepresent invention can be used in various configurations, from simplysupporting a plank for a horizontal work surface on a sloped roof, or asa set of stairs ascending the roof, to a plank and toe boardcombination, or a full safety railing and perimeter protection systemthat can be installed anywhere in a residential or industrial/commercialconstruction site. For a residence, this would range from the firstfloor (such as, for example, protecting an opening to the basement), tothe second floor (such as, for example, protecting an unguarded balconyedge), to the peak of the roof. For industrial/commercial buildings, thebarricade system can be used to protect unguarded holes that are waitingfor construction to be completed (such as, for example, elevator shaftopenings on consecutive floors, or openings on consecutive floors forheating, ventilation, and air conditioning ductwork). An additionalimportant usage would be as a set of handrails on an unprotected set ofsteps in any type of construction.

In one aspect, the barricade system also includes a pole that includes abend at one end. The pole can be connected to the barricade bracket toprovide a substantially vertical support pole in both flat and slopedconfigurations. Moreover, in exemplary embodiments, the use of fastenersto set the angle of the barricade bracket and means for setting the railor barrier height allows for easy and convenient manipulation of thebarricade bracket and rail or barrier placement and configuration. Thus,the barricade system allows for maximum versatility and provides safework conditions in a variety of work situations.

DETAILED DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute apart of this specification, illustrate certain aspects of the instantinvention and together with the description, serve to explain, withoutlimitation, the principles of the invention. These and other features ofthe embodiments of the invention will become more apparent in thefollowing detailed description in which reference is made to theappended drawings wherein:

FIG. 1 is a perspective view of an embodiment of a barricade bracket ofthe present invention for use in a barricade system.

FIG. 2 is an exploded view of the barricade bracket of FIG. 1.

FIG. 3 is a perspective view of a base member of the barricade bracketof FIG. 1.

FIG. 4 is a perspective view of a support member of the barricadebracket of FIG. 1.

FIG. 5 is a perspective view of a step member of the barricade bracketof FIG. 1.

FIG. 6 is a perspective view of the barricade system of the presentinvention mounted onto a portion of a pitched roof, showing a polemounted to the barricade bracket of FIG. 1 and showing a rail assemblymounted to a portion of the pole.

FIG. 7 is a perspective view of the barricade system of the presentinvention positioned about a portion of a hole in a structure.

FIG. 8 is a perspective cross-sectional view of a rail assembly of thepresent invention releaseably mounted to a portion of the pole.

FIG. 9 is a perspective view of the barricade bracket of FIG. 1 in astorable position.

DETAILED DESCRIPTION OF THE INVENTION

The present invention can be understood more readily by reference to thefollowing detailed description, examples, and claims, and their previousand following description.

Before the present systems, devices, and/or methods are disclosed anddescribed, it is to be understood that this invention is not limited tothe specific articles, devices, and/or methods disclosed unlessotherwise specified, as such, and can, of course, vary. It is also to beunderstood that the terminology used herein is for the purpose ofdescribing particular aspects only and is not intended to be limiting.

The following description of the invention is provided as an enablingteaching of the invention in its best, currently known embodiment. Thoseskilled in the relevant art will recognize that many changes can be madeto the embodiments described, while still obtaining the beneficialresults of the present invention. It will also be apparent that some ofthe desired benefits of the present invention can be obtained byselecting some of the features of the present invention withoututilizing other features. Accordingly, those who work in the art willrecognize that many modifications and adaptations to the presentinvention are possible and can even be desirable in certaincircumstances and are a part of the present invention. Thus, thefollowing description is provided as illustrative of the principles ofthe present invention and not in limitation thereof. It is particularlynoted that it is contemplated that alternative scaled devices of thepresent invention can be derived from the exemplary, and not meant to belimiting, dimensions provided herein in an exemplary embodiment of thepresent invention.

As used herein, the singular forms “a,” “an” and “the” include pluralreferents unless the context clearly dictates otherwise. Thus, forexample, reference to a “barricade bracket” includes aspects having twoor more barricade brackets unless the context clearly indicatesotherwise.

Ranges can be expressed herein as from “about” one particular value,and/or to “about” another particular value. When such a range isexpressed, another aspect includes from the one particular value and/orto the other particular value. Similarly, when values are expressed asapproximations, by use of the antecedent “about,” it will be understoodthat the particular value forms another aspect. It will be furtherunderstood that the endpoints of each of the ranges are significant bothin relation to the other endpoint, and independently of the otherendpoint.

As used herein, the terms “optional” or “optionally” mean that thesubsequently described event or circumstance may or may not occur, andthat the description includes instances where said event or circumstanceoccurs and instances where it does not.

The present invention provides a protective barricade system 2 that canbe secured to an underlying surface at least partially surrounding aroof or floor opening or on a pitched roof. A conventional pitched roofincludes an underlying truss structure formed by inclined, generallyparallel, spaced apart joists that run generally perpendicular to theroof edge, and a plywood overlay on the joists that are formed bysuccessive courses of sheet overlay, such as, for example and not meantto be limiting, plywood sheets. The first course of sheet typicallybegins adjacent the roof edge while successive courses progress upwardlytoward the apex of the roof. As noted above, conventional slopedresidential roofs have typical pitches ranging between 27° (6:12), 34°(8:12), and 40° (10:12) to 45° (12:12), 51° (15:12), 56° (18:12), and63° (24:12). Of course, other customized pitches that vary from thetypical pitches can be accommodated by the barricade system of thepresent invention.

In an exemplary use on a roof, the barricade system 2 of the presentinvention can comprise a plurality of barricade brackets 10 that arespaced apart along the roof. The purpose of the barricade brackets is toprovide a trustworthy support for barricades, such as, for example,rails, that are positioned at the mandated OSHA regulation heights. Inone exemplified embodiment, each barricade bracket 10 comprises a basemember 20, a support member 30, a step member 40, and a plurality ofshafts or fasteners 70.

The base member 20 of the barricade bracket comprises an anchor plate 22and a pair of opposing base side members 24A, 24B that extend fromopposing edge portions of the anchor plate. In one exemplary aspect, atleast a portion of the base member 20 defines a U-shaped channel. In oneaspect, the anchor plate 22 of the base member defines a plurality ofanchor openings 23 that are adapted to receive a fastener 80, such as,for example and not meant to be limiting, a nail, a screw, a bolt, andthe like, for releasable connection to the underlying surface. Theanchor plate 22 has a first width w₁, which is transverse to thelongitudinal axis of the base member. In one example, the first width w₁is about 2.75 inches.

Each base side member 24A, 24B defines a first opening 26 and at leastone second opening 28 such that the pair of opposing base side membersdefines a first pair of opposing first openings 26 and a spaced at leastone second pair of opposing second openings 28. In one example, thefirst opening of each base side member is spaced from the at least onesecond opening. In a further aspect, the first opening 26 is positionedon a top portion 25 of the base side member, and, in an alternativeaspect, the at least one second opening 28 is positioned on a bottomportion 27 of the base side member.

In one example, the at least one second opening 28 comprises a pluralityof second openings. The plurality of second openings can extend linearlysubstantially parallel to a longitudinal axis of the base member. In oneaspect, each of the plurality of second openings is spaced from anadjacent second opening a predetermined distance. It is contemplatedthat the predetermined distance between each of the second openings issubstantially uniform or is variable. Alternatively, it is contemplatedthat the predetermined distance varies between at least two of thesecond openings of the plurality of second openings.

For example and not meant to be limiting, the second opening 28A isspaced from the first opening 26 about 4.54 inches; the second opening28B is spaced from the first opening 26 about 5.57 inches; the secondopening 28C is spaced from the first opening 26 about 6.37 inches; thesecond opening 28D is spaced from the first opening 26 about 7.04inches; the second opening 28E is spaced from the first opening 26 about7.63 inches; the second opening 28F is spaced from the first opening 26about 8.25 inches; the second opening 28G is spaced from the firstopening 26 about 8.88 inches; and the second opening 28H is spaced fromthe first opening 26 about 9.50 inches.

The support member 30 of the barricade bracket 10 comprises a back plate32 and a pair of opposing support side members 34A, 34B that extend fromopposing edge portions of the back plate. In one exemplary aspect, atleast a portion of the support member 30 defines a U-shaped channel thathas a second width w₂, which is transverse to the longitudinal axis ofthe support member and which is greater than the first width w₁ of thebase member. In one example, the second width w₂ is about 3.25 inches.

In a further aspect, the pair of opposing support side members 34A, 34Bdefine a third pair of opposing third openings 36 and a spaced at leastone fourth pair of opposing fourth openings 38. In this aspect, eachsupport side member defines a third opening 36 and at least one fourthopening 38 that is spaced from the third opening. In one example, thethird opening 36 is positioned adjacent a lower portion 33 of thesupport side member and the at least one fourth opening 38 is positionedon an upper portion 37 of the support side member.

In an exemplary aspect, the at least one fourth opening 38 comprises aplurality of fourth openings. In this aspect, the plurality of fourthopenings can extend linearly substantially parallel to the longitudinalaxis of the support member. Each of the plurality of fourth openings isspaced from an adjacent fourth opening a predetermined distance that canbe substantially uniform or can be variable. In one example, thepredetermined distance varies between at least two of the fourthopenings of the plurality of fourth openings.

For example and not meant to be limiting, the fourth opening 38A isspaced from the third opening 36 about 4.50 inches; the fourth opening38B is spaced from the third opening 36 about 5.53 inches; the fourthopening 38C is spaced from the third opening 36 about 6.33 inches; thefourth opening 38D is spaced from the third opening 36 about 6.96inches; the fourth opening 38E is spaced from the third opening 36 about7.55 inches; the fourth opening 38F is spaced from the third opening 36about 8.12 inches; and the fourth opening 38G is spaced from the thirdopening 36 about 8.70 inches.

In a further aspect, the support member 30 of the barricade bracketfurther comprises at least one U-shaped trough member 39. In thisaspect, one side of the trough member is connected to a portion of anupper edge of the support side member. In one example, the side of thetrough member is connected to a lower portion 33 of the upper edge ofthe support side member. In another example, the closed bottom portionof the trough is oriented downwardly toward the lower portion 33 of thesupport side member. In another example, the closed bottom portion ofthe trough member 39 can be positioned adjacent the third opening 36 ofthe support member. The at least one trough member 39 is adapted to seator mount a board, such as, for example, a conventional stock piece oflumber therein such that the board is positioned in a planesubstantially parallel to the back plate of the support member. In oneaspect, the at least one trough member 39 comprises an opposed pair oftrough members. In this aspect, each trough member 39 extends fromopposing edges of the opposing support side members 34A, 34B. In afurther aspect, each trough member defines at least one opening that isadapted to receive a fastener such that a toe board can be releaseablymounted therein the trough member 39.

The step member 40 of the barricade bracket comprises a top plate 42 anda pair of opposing step side members 44A, 44B that extend from opposingedge portions of the top plate. The pair of opposing step side membersdefining a fifth pair of opposing fifth openings 46 and a spaced sixthpair of opposing sixth openings 48. In one aspect, each step side memberdefines a fifth opening 46 and a spaced sixth opening 48. In oneexample, the fifth opening is positioned adjacent a proximal end 45 ofthe step side member and the sixth opening is positioned adjacent adistal end 47 of the step side member. In one example and not meant tobe limiting, the fifth opening is spaced from the sixth opening about9.5 inches. In one exemplary aspect, at least a portion of the supportmember 40 defines a U-shaped channel that has a third width w₃, which istransverse to the longitudinal axis of the support member and which isgreater than the first width w₁ of the base member and less than thesecond width w₂ of the support member. In one example, the third widthw₃ is about 3.0 inches.

In one aspect, the top plate 42 of the step member defines a pluralityof mount openings 43 that are adapted to receive a fastener 80, such as,for example and not meant to be limiting, a nail, a screw, a bolt, andthe like. In one example, the mount openings 43 can be used forreleasable connection of a support plank 12 directly to the top plate 42of the step member. In an alternative embodiment, the step member canfurther comprise a shoulder member 50 that defines at least one opening52, which is adapted to receive the fastener. Thus, in use, the shouldermember 50 can be selectively connected to the top plate 42 of the stepmember. Further, the shoulder member can comprise a stop 54 that extendssubstantially transverse from a distal end 56 of the shoulder member. Inuse, the support plank 12 can be positioned thereon the shoulder memberand against at least a portion of the stop. It is contemplated that thesupport plank 12 can rest on the shoulder member or it can be releasablysecured to the shoulder member. In a further aspect, the shoulder memberdefines at least one opening that is adapted to receive a fastener 80such that the support plank 12 can be releaseably secured to theshoulder member 50.

In one embodiment, the respective base, support and step members areselectively fixed relative to each other by the selective use of theplurality of fasteners 70. In one example, at least one fastener 70 ofthe plurality of fasteners is adapted to mount therein the first pair ofopposing first opening 26 of the base member and the fifth pair 46 ofopposing fifth opening of the step member; at least one fastener of theplurality of fasteners is adapted to mount therein one of the at leastone second pair of opposing second openings 28 of the base member andthe third pair of opposing third openings 36 of the support member; andat least one fastener of the plurality of fasteners is adapted to mounttherein one of the at least one fourth pair of opposing fourth openings38 of the support member and the sixth pair of opposing sixth openings48 of the step member. In, use, when the fasteners are selectivelymounted, the step member 40 is selectively and releasably positioned atone of a plurality of predetermined acute angles with respect to thebase member 20. In one example, the plurality of predetermined acuteangles comprises angles about that of conventional sloped residentialroofs having typical pitches about 27° (6:12 pitch); 34° (8:12 pitch);40° (10:12 pitch); 45° (12:12 pitch); 51° (15:12 pitch); 56° (18:12pitch); and 63° (24:12 pitch). However, as one skilled in the art willappreciate, it is contemplated that by selective use of the availableopenings in the respective base, support and step members, the stepmember 40 can be positioned with respect to the base member 20 at apredetermined angle between about 10° to about 70°. Thus, it iscontemplated that custom roof slopes can be accommodated by the presentinvention. In one aspect, in the “custom” position, the step member ofthe barricade bracket has a few degree pitch relative to the horizontaland toward the underlying roof surface.

In one further aspect, the at least one fastener 70 of the plurality offasteners mounted therein the first pair of opposing first opening 26 ofthe base member and the fifth pair of opposing fifth openings 46 isadapted to be releasably mounted. Alternatively, the at least onefastener of the plurality of fasteners mounted therein the first pair ofopposing first opening 26 of the base member and the fifth pair ofopposing fifth openings 46 can be adapted to be non-releasably mounted.It is further contemplated that the at least one fasteners connectingthe respective base and step members 20, 40 to the support member 30 arereleasably mounted. Exemplary fasteners 70 comprise, but are not meantto be limited to, conventional complementary nut and bolt and a pin andcomplementary clip that is adapted to releasably mount to a distal endof the pin.

In one exemplified embodiment, the plurality of fasteners 70 cancomprise a first shaft 70A, a second shaft 70B, and a third shaft 70C.In this example, the first shaft 70A is sized and shaped adapted tomount therein the first pair of opposing first openings 26 of the basemember and the fifth pair of opposing fifth openings 46 in the stepmember such that the step member 40 can be pivotally moved relative tothe base member 20 about an axis of the first shaft. In a furtheraspect, the second shaft 70B is adapted to mount therein one of the atleast one second pair of opposing second openings 28 of the base memberand the third pair 36 of opposing third openings of the support membersuch that the support member 30 can be positioned relative to the basemember 20. In this aspect, the third shaft 70C is sized and shaped tomount therein the one of the at least one fourth pair of opposing fourthopenings 38 of the support member and the sixth pair of opposing sixthopenings 48 of the step member. In use, the third shaft 70C allows thestep member 40 to be positioned relative to the support member 30.

In use, and as one skilled in the art will appreciate, when therespective first, second and third shafts 70A, 70B, and 70C are mountedtherein the respective openings, the respective base, support and stepmembers are fixed relative to each other. The respective base, supportand step members 20, 30, 40 can be selectively positioned with respectto each other such that the step member is selectively and releasablypositioned at the plurality of predetermined acute angles with respectto the base member. In certain aspects of the invention, the supportmember extends substantially transverse to the base member.

For example, and as shown below, for a typical 6:12 pitched roof slope,the first shaft 70A is positioned therein opposing first openings 26 ofthe base member 20 and the opposing fifth openings 46 in the step member40. The second shaft 70B is positioned therein opposing second openings28G of the base member and the opposing third openings 36 of the supportmember. Finally, the third shaft 70C is fit into the opposing fourthopenings 38A of the support member 30 and the opposing sixth openings 48of the step member 40.

In one example of assembling the barricade bracket for mounting thereona flat surface, the first shaft 70A is positioned therein opposing firstopenings 26 of the base member and the opposing fifth openings 46 in thestep member. The second shaft 70B is positioned therein opposing secondopenings 28B of the base member and the opposing third openings 36 ofthe support member. Finally, the third shaft 70C is fit into theopposing fourth openings 38F of the support member and the opposingsixth openings 48 of the step member. In another example of assemblingthe barricade bracket for a flat surface, the first shaft 70A ispositioned therein opposing first openings 26 of the base member and theopposing fifth openings 46 in the step member. The second shaft 70B ispositioned therein opposing second openings 28A of the base member andthe opposing third openings 36 of the support member. Finally, the thirdshaft 70C is fit into the opposing fourth openings 34G of the supportmember and the opposing sixth openings 48 of the step member. In theseembodiments, the step member is positioned at an angle with respect tothe underlying flat surface.

Alternatively, in a stowed or closed configuration, the first shaft 70Ais positioned therein opposing first openings 26 of the base member andthe opposing fifth openings 46 in the step member. The second shaft 70Bis positioned therein opposing second openings 28H of the base memberand the opposing third openings 36 of the support member. Finally, thethird shaft 70C is fit into the opposing fourth openings 38A of thesupport member and the opposing sixth openings 48 of the step member.

Exemplary mountings of the respective shafts of the invention relativeto the openings in the side members of the respective base, support, andstep members 20, 30, 40 for typical surface pitches include:

Fastener/Shaft Opening Locations Base Member Step Member Support MemberPitch Hole # Hole # Hole #  6/12 26-28G 46-48 36-38A  8/12 26-28F 46-4836-38B 10/12 26-28E 46-48 36-38C 12/12 26-28D 46-48 36-38D 15/12 26-28C46-48 36-38E 18/12 26-28B 46-48 36-38F 24/12 26-28A 46-48 36-38G Flat26-28B 46-48 36-38F 26-28A 46-48 36-38G Stored 26-28H 46-48 36-38AOf course, as noted above, for non-conventional pitched surfaces, themounting of the shafts will be varied, as one skilled in the art willappreciate, to position the top plate of the step member near ahorizontal position.

The barricade bracket 10 can further comprise a pole 60 and acomplementary mount 65. The mount 65 is connected to the outwardlyfacing portion of the back plate 32 of the support member and extendssubstantially parallel to the longitudinal axis of the support member.The mount 65 defines a bore 67 that is sized and shaped forcomplementary receipt of an end portion 62 of the pole 60.

In one aspect, the pole has a first end portion 62A and an opposedsecond end portion 62B. In this aspect, the first end portion ispositioned at an obtuse angle γ with respect to the second end portion.The obtuse angle γ is between about 130° and 155°, or between about 140°and 145°. Both of the first and second end portions 62A, 62B are adaptedto be received in the bore 67 of the mount 65. Thus, in use, either thefirst or the second end portions are placed therein the mount for thedesired orientation of the intermediate portion 62C of the pole relativeto the step member.

In a further aspect, the barricade bracket 10 can further comprise arail assembly 90 for selectively mounting safety rails or barriers, suchas, for example, a top rail and/or a midrail, extending therebetween apair of adjacent barricade brackets 10. In this aspect, the railassembly 90 comprises a spine member 92 and at least one bracket sidemember 94 that extends from an edge of the spine member. The spinemember 92 defines a passage 96 and the at least one bracket side memberdefines an opening 98 that is shaped and sized for complementary receiptof a safety rail or barrier, such as, for example, a predetermineddimensioned piece of lumber. In one aspect, the at least one bracketside member 94 comprises an opposed pair of bracket side members 94A,94B. In this aspect, each bracket side member extends from opposingedges of the spine member. In a further aspect, a first threaded member97 is mounted to the spine member such that its threaded bore 99 iscoaxial with the passage 96.

In another aspect, the rail assembly 90 further comprises a sleeve 100,a second threaded member 110, and a fastener 120. The sleeve defines aconduit 102 that is sized and shaped for mounting to a portion of theexterior surface of the pole that can be selected for the desired heightof the rail or barrier relative to the underlying surface. The sleeve100 further defines an opening 104 in communication with the conduit102. The second threaded member 110 defines a threaded bore 112 and ismounted thereon the exterior surface of the sleeve. In one aspect, thethreaded member 110 is connected to the sleeve 100 such that thethreaded bore 112 is coaxial to the opening 104 of the sleeve 92. In afurther aspect, the fastener 120, such as, for example and not meant tobe limiting, a bolt, has a distal end portion 122 that is adapted toengage the threaded bore 99 of the first threaded member 97 and thethreaded bore 112 of the second threaded member 110 such that the distalend of the fastener 120 can selectively engage a portion of the exteriorsurface of the pole 60 to selectively secure the rail assembly 90 to thepole and such that the sleeve 100 is releasably connected to andpositioned substantially parallel to the spine member 92. In thisaspect, one will appreciate that the longitudinal axis of the sleeve 100can be releasably positioned at a desired angle with respect to thelongitudinal axis of the spine member 92.

An exemplified procedure for installing the barricade system 2 of thepresent invention on a 6:12 pitched roof will be described. First, aplurality of barricade brackets 10, as described above, are provided.The slope of the surface is identified so that the respective openingsin the base, support and step members 20, 30, and 40 can be identified.In this example, for each barricade bracket, the first shaft 70A ispositioned therein the first pair of first openings 26 of the basemember 20 and the fifth pair of fifth openings 46 of the step member 40.Next, for each barricade bracket, the second shaft 70B is positionedinto a select one of the second pair of second openings 28 (in thisexample, second opening 28G) of the base member 20 and the third pair ofthird openings 36 of the support member 30. The third shaft 70C ispositioned into a select one of the fourth pair of openings 38 (in thisexample, fourth opening 38A) of the support member 30 and the sixth pairof fourth openings 48 of the step member 40 for each barricade bracketin the barricade system. One will appreciate that, with the shaftspositioned in the selected openings of the respective base, support andstep members, the base, support and step members are fixed relative toeach other. Further, the step member is selectively positioned at apredetermined angle with respect to the base member. In one embodiment,the predetermined angle is complementary to the slope of the surfacesuch that the step member is substantially horizontal.

Further, the respective anchor plates of two adjacent barricade brackets10 are releasably mounted to the surface of the roof, such as to theunderlying plywood sheathing. In one aspect, the two adjacent barricadebrackets are positioned such that the respective top plates 42 of the atleast two barricade brackets are coplanar. In one aspect, it iscontemplated that the anchor plate 22 of the base member can be mountedto the surface of the roof prior to the mounting of the first shaft 70A,and/or the second shaft 70B, and/or the third shaft 70C. In analternative aspect, it is contemplated that the anchor plates 22 of thebase member should be mounted to the surface of the roof after mountingof the first shaft 70A, and the second shaft 70B, and the third shaft70C. In this aspect, the barricade bracket can be assembled on theground and the assembled bracket assembly can be delivered to themounting surface for installation.

Further, a plurality of poles 60 can be provided such that an endportion of each pole can be mounted therein the mount 65 of the supportmember. A barrier 14 is mounted to a portion of each pole to prevent aperson from progressing therethrough the space between adjacentbarricade brackets. In one example, the barrier can be a guard railformed from a piece of dimensioned lumber. Alternatively, for exampleand not meant to be limiting, the barrier can comprise rigid metaltubing (such as aluminum, steel, etc.), netting (such as cloth, plastic,rubber, or any other suitable material), or any other suitable barriermeans.

In one example, at least one rail assembly 90 is mounted onto each pole60 such that at least one opposed pair of rail assemblies are formedbetween two adjacent barricade brackets. A barrier 14, such as a pieceof dimensioned lumber, can be placed into the brackets of the respectiverail assemblies to form the desired barrier. Still further, in anotheraspect, a selected piece of dimensioned lumber can be positioned withinthe respective trough members of the two adjacent barricade brackets 10to form a toe board 16 for the barricade system 2. In an additionalaspect, the support plank 12 is positioned on the respective top plates42 of the two adjacent barricade brackets to form a work surface thatis, in one example, substantially horizontal.

Thus, the barricade system of the present invention allows for theinstallation of the three-member guard rail required by OSHA standards(top rail 14A, midrail 14B and toe-board 16), as well as theinstallation of support planks 12 ranging from, for example and notmeant to be limiting, 2″×6″ to 2″×12″. The exemplary 12″ wide plankprovides for a large walking/working area.

Although several embodiments of the invention have been disclosed in theforegoing specification, it is understood by those skilled in the artthat many modifications and other embodiments of the invention will cometo mind to which the invention pertains, having the benefit of theteaching presented in the foregoing description and associated drawings.It is therefore understood that the invention is not limited to thespecific embodiments disclosed herein, and that many modifications andother embodiments of the invention are intended to be included withinthe scope of the invention. Moreover, although specific terms areemployed herein, they are used only in a generic and descriptive sense,and not for the purposes of limiting the described invention.

1. A portable barricade bracket for working on a surface, comprising: abase member having a longitudinal axis, an anchor plate and a pair ofopposing base side members extending from opposing edge portions of theanchor plate and defining a first pair of opposing first openings and aspaced at least one second pair of opposing second openings, a supportmember having a longitudinal axis, a back plate and a pair of opposingsupport side members extending from opposing edge portions of the backplate and defining a third pair of opposing third openings and a spacedat least one fourth pair of opposing fourth openings; a step memberhaving a longitudinal axis, a top plate and a pair of opposing step sidemembers extending from opposing edge portions of the top plate defininga fifth pair of opposing fifth openings and a spaced sixth pair ofopposing sixth openings; a first shaft adapted to mount therein thefirst pair of the base member and the fifth pair of the step member suchthat the step member can be pivotally moved relative to the base memberabout an axis of the first pivot shaft; a second shaft adapted to mounttherein one of the second pair of the base member and the third pair ofthe support member such that the support member can be positionedrelative to the base member; a third shaft adapted to mount therein theone of the fourth pair of the support member and the sixth pair of thestep member such that the step member can be positioned relative to thesupport member, wherein, the respective base, support and step membersare fixed relative to each other when the respective first, second andthird shafts are mounted therein, and wherein the step member isselectively and releasably positioned at a plurality of predeterminedacute angles with respect to the base member; a pole and a mount,wherein the mount is connected to the back plate of the support memberand extends substantially parallel to the longitudinal axis of thesupport member, and wherein the mount defines a bore that is sized andshaped for complementary receipt of the pole; a rail assemblycomprising: a spine member having a longitudinal axis and at least onebracket side member extending therefrom an edge of the spine member,wherein the spine member defines a passage, and wherein the at least onebracket defining an opening that is shaped and sized for complementaryreceipt of a predetermined dimensioned piece of lumber; a sleeve thatdefines a conduit that is sized and shaped for slidable engagement witha portion of the pole, wherein the sleeve defines an opening incommunication with the conduit; a threaded member that defines athreaded bore, the threaded member mounted therein the passage of thespine member, wherein the threaded member is connected to the sleevesuch that the threaded bore is coaxial to the conduit of the sleeve andsuch that the sleeve is positioned substantially parallel to thelongitudinal axis of the spine member; and a fastener having a distalend that is adapted to engage the threaded bore of the threaded member,whereby the distal end can selectively engage a portion of the pole toselectively secure the rail assembly to the pole.
 2. The barricadebracket of claim 1, wherein each base side member defines a firstopening and at least one second opening, and wherein the first openingis spaced from the at least one second opening.
 3. The barricade bracketof claim 2, wherein the first opening is positioned on a top portion ofthe base side member, and wherein the at least one second opening ispositioned on a bottom portion of the base side member.
 4. The barricadebracket of claim 3, wherein the at least one second opening comprises aplurality of second openings.
 5. The barricade bracket of claim 4,wherein the plurality of second openings extends linearly substantiallyparallel to the longitudinal axis of the base member.
 6. The barricadebracket of claim 4, wherein each of the plurality of second openings isspaced from an adjacent second opening a predetermined distance.
 7. Thebarricade bracket of claim 6, wherein the predetermined distance issubstantially uniform.
 8. The barricade bracket of claim 6, wherein thepredetermined distance varies between at least two of the secondopenings of the plurality of second openings.
 9. The barricade bracketof claim 6, wherein the predetermined distance is variable.
 10. Thebarricade bracket of claim 1, wherein each support side member defines athird opening and at least one fourth opening, and wherein the thirdopening is spaced from the at least one fourth opening.
 11. Thebarricade bracket of claim 10, wherein the third opening is positionedadjacent a lower portion of the support side member, and wherein the atleast one fourth opening is positioned on an upper portion of thesupport side member.
 12. The barricade bracket of claim 11, wherein theat least one fourth opening comprises a plurality of fourth openings.13. The barricade bracket of claim 12, wherein the plurality of fourthopenings extends linearly substantially parallel to the longitudinalaxis of the support member.
 14. The barricade bracket of claim 12,wherein each of the plurality of fourth openings is spaced from anadjacent fourth opening a predetermined distance.
 15. The barricadebracket of claim 14, wherein the predetermined distance is substantiallyuniform.
 16. The barricade bracket of claim 14, wherein thepredetermined distance varies between at least two of the fourthopenings of the plurality of fourth openings.
 17. The barricade bracketof claim 14, wherein the predetermined distance is variable.
 18. Thebarricade bracket of claim 1, wherein each step side member defines afifth opening and a sixth opening, and wherein the fifth opening isspaced from the sixth opening.
 19. The barricade bracket of claim 18,wherein the fifth opening is positioned adjacent a proximal end of thestep side member, and wherein the sixth opening is positioned adjacent adistal end of the support side member.
 20. The barricade bracket ofclaim 1, wherein the support member is positioned substantially normalto the base member.
 21. The barricade bracket of claim 1, wherein atleast a portion of the base member, the support member and the stepmember defines a U-shaped channel.
 22. The barricade bracket of claim 1,wherein the anchor plate of the base member defines a plurality ofanchor openings adapted to receive a fastener for releasable connectionto the surface.
 23. The barricade bracket of claim 1, wherein the topplate of the step member defines a plurality of mount openings adaptedto receive a fastener.
 24. The barricade bracket of claim 23, furthercomprising a shoulder member that defines at least one opening that isadapted to receive the fastener, whereby the shoulder member can beselectively connected to the top plate of the step member.
 25. Thebarricade bracket of claim 24, wherein the shoulder member furthercomprises a stop that extends substantially transverse therefrom adistal end of the shoulder member.
 26. The barricade bracket of claim 1,wherein the pole has a first end portion and a second end portion,wherein the first end portion is positioned at an obtuse angle withrespect to the second end portion, and wherein the first and second endportions are adapted to be received therein the bore of the mount. 27.The barricade bracket of claim 1, wherein the at least one bracket sidemember comprises an opposed pair of bracket side members, each bracketside member extending from opposing edges of the spine member.
 28. Thebarricade bracket of claims 1 or 24, further comprising at least oneU-shaped trough member, one side of the trough member being connected toa portion of an upper edge of the support side member, each troughmember adapted to seat a board therein such that the board is positionedin a plane substantially parallel to the back plate of the supportmember.
 29. The barricade bracket of claim 1, wherein the first shaft isreleasably mounted therein the first pair of the base member and thefifth pair of the step member.
 30. The barricade bracket of claim 29,wherein the first shaft comprises a bolt.
 31. The barricade bracket ofclaim 1, wherein the second shaft is releasably mounted therein one ofthe second pair of the base member and the third pair of the supportmember.
 32. The barricade bracket of claims 1 or 31, wherein the thirdshaft is releasably mounted therein the one of the fourth pair of thesupport member and the sixth pair of the step member.
 33. The barricadebracket of claim 1, wherein each of second and third shafts comprises apin and a clip that is adapted to releasably mount to a distal end ofthe pin.
 34. A barricade for working on a work surface comprising: abase for attaching to the work surface; a support member coupled to thebase and extending substantially perpendicular to the base; a stepmember coupled at one end to the base and at an opposite end to thesupport member, the step member for supporting a walking surfaceadjacent to the work surface; at least one pole for coupling to thesupport member for attaching a railing; a sleeve coupled to the polethat can slide on the pole for selecting a height of the railing; and afastener for securing the sleeve to the pole.
 35. The barricade of claim34, wherein the pole has at least one curved end for allowing therailing to extend at an angle from the walking surface.
 36. Thebarricade of claim 34, wherein the pole is removable from the supportmember.
 37. The barricade of claim 34, wherein the support memberincludes a pole mount along a longitudinal axis of the support member,the pole mount having a bore therein for removably securing the pole.38. The barricade of claim 34, wherein the pole has a curved end and astraight end for adjusting an angle from which the pole extends relativeto the support member.
 39. The barricade of claim 34, wherein thesupport member further includes a U-shaped member for securing a toeboard that is separate from the walking surface.
 40. A method oferecting a barricade for working on a work surface comprising: attachinga first and second base to the work surface; attaching a first supportmember to the first base so that the first support member extendsperpendicular to the first base and a second support member to thesecond base so that the second support member extends perpendicular tothe second base; attaching one end of a first step member to the firstbase and another end of the first step member to the first supportmember; attaching one end of a second step member to the second base andanother end of the second step member to the second support member;attaching a walking surface on the first and second step members so thatthe walking surface is adjacent to the work surface; attaching a firstpole to the first support member; attaching a second pole to the secondsupport member sliding a first sleeve on the first pole until it is setat a desired height for a railing; sliding a second sleeve on the secondpole until it is set at the desired height for the railing; and securingthe first and second sleeves to the first and second poles using firstand second threaded members, respectively, so that the railing extendsbetween the first and second sleeves.
 41. The method of claim 40,wherein each pole has at least one curved end for allowing the railingto extend at an angle from the walking surface.
 42. The barricade ofclaim 40, wherein each pole is removable from its respective supportmember.
 43. The barricade of claim 40, wherein each of the first andsecond support members include pole mounts along a longitudinal axis ofthe support members, each of the pole mounts having a bore therein forremovably securing the pole.
 44. The barricade of claim 40, wherein eachpole has a curved end and a straight end for adjusting an angle fromwhich the railing extends relative to the support member.
 45. Thebarricade of claim 40, wherein each support member further includes aU-shaped member for securing a toe board that is separate from thewalking surface.